I honestly like Abigail more than Jalter (not that I ever got Jalter, but still >.>) Her buffs might not be as absurd, but in terms of being a generalist Foreginer is better than Avenger. Avenger still gets beat up by Berserkers and a random crit from one can really take a chunk out of you, but Foreigners are only weak to Alter-Egos and Foreigners, and how often do you fight those? So she might not be the be-all end-all for Merlin crit memes, but you can frontline her in every single battle and almost never regret it.